package com.gcd.gym.service;

import com.gcd.gym.model.chart.CourseGrading;
import com.gcd.gym.model.chart.CourseHot;

import java.util.LinkedHashMap;
import java.util.List;

public interface ChartService {

    //    查询热门课程
    List<CourseHot> courseHotChart();

    //    课程评分统计
    List<CourseGrading> courseGrading();
}
